Question $13$

$3\mathrm{.}57pts$

Use the following sensitivity analysis table to answer the following question:

Decision variable cells

$\backslash$table$[[$Cell$,\backslash$table$[[$Name$],[($Variable$)]],$Final value,$\backslash$table$[[$Reduced$],[$cost$]],\backslash$table$[[$Objective$],[$coefficient$]],\backslash$table$[[$Allowable$],[$Increase$]],\backslash$table$[[$Allowable$],[$decrease$]]],[$$$B$$$17,x,10,0,80,9,6],[$$$C$$$18,Y,15,0,70,23,2]]$

What will be the final value of $x$ when we will reduce the objective coefficient from $80($see table$)$ to $65?$

$10$

$15$

$10+15$

Unknown $($we need to solve again$)$